Keystones — Bedrock
Five GCSE retrieval questions · 17 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 51 + 97
Answer: 51 + 97 = 148 -
2. Algebra Substitution
If x = 4, find the value of 5x + 10
Answer: 30 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 1, 20, 15, 10, 14
Answer: 12